code: def test_dshape_into_repr(self):
      for ds in self.dshapes:
          self.assertEqual(eval(repr(dshape(ds))), dshape(ds))
          for dm in self.dimensions:
              d = dshape(dm + " * " + ds)
              self.assertEqual(eval(repr(d)), d)
  
imports: from __future__ import absolute_import, division, print_function
  import ctypes
  import unittest
  import pytest
  from datashader import datashape
  from datashader.datashape import dshape, error, DataShape, Record
label_desc: Use image node_id 20 for calling the TestDataShapeCreation obj's underlying member method code with example usage: obj.test_dshape_into_repr() without return types